Thermostatic
Mixing Valve
Servicing

Thermostatic Mixing Valve’s (TMVs) are installed to safeguard vulnerable building users from the risk of scalding. The HSE defines vulnerable people as children, older people, people with reduced mental capacity, mobility or temperature sensitivity and other people who cannot react appropriately, or quickly enough to prevent injury.

TMV
Servicing

In NHS settings, preventing patient scalding from hot water is a top priority — in fact, it’s classed as a ‘Never Event’, meaning it should never occur if proper procedures are in place.

To manage this risk, Thermostatic Mixing Valves (TMVs) are commonly installed to regulate water temperature. However, if TMVs are not correctly installed, maintained, or regularly inspected, they can pose a risk to water quality and system safety.

According to Health Technical Memorandum 04-01 (HTM 04-01, 2016), a scalding risk assessment should be carried out before installing any TMVs to determine the need and type of valve required.

Aqua Protec’s TMV Services Include:

Failsafe Checks
Scale Removal & Filter Cleaning
Temperature checks and adjustments where needed
Auditing the water supply conditions where TMVs are to be fitted
Commissioning new TMVs to ensure they’re set up correctly
In-service testing to confirm continued safe operation

Our Service Options:

Standard TMV Service
Includes cleaning and disinfecting strainers, performing compliance checks such as fail-safe tests, temperature readings, and calibrating the thermostatic cartridge.

Extended TMV Service
Involves full removal of the valve, complete internal disinfection of the TMV, and thorough servicing of all components. If a TMV fails we will commission and setup a new TMV.

Certified Expertise

Our City & Guilds qualified plumbers are experienced in installing, commissioning, and servicing a wide range of TMV3-approved valves, always in line with manufacturer guidelines and HTM04-01 Performance Specification D08 (2015).

Aqua Protec is proud to be a certified member of the Approved Contractors’ Scheme by Severn Trent Water, WaterMark, and WaterSafe. This means we can issue compliance certificates for any general plumbing work, demonstrating adherence to the Water Supply (Water Fittings) Regulations 1999.